Regroup 1 Ten As 10 Ones. If you change a dime for 10 pennies, you have no dimes and 10 pennies. When we start in the ones column and add 6 + 7, the sum is 13.
In the problem, we will add. We learn what the word regroup means! Regroup numbers in each place value (e.g., regroup 1 ten as 10 ones) to express whole numbers in different ways.